The RS Pro LUX/FC Light Meter ILM-201L is a cost-effective instrument that offers a spectral range close to the CIE luminous efficiency spectrum, measurements in lux or candelas per foot, as well as a silicon photodiode and a filter. This portable, pocket-sized device is lightweight and ideal for light measurement applications in almost any environment. The sensor is connected to the digital display via a flexible cable to enhance convenience. Light meters measure light levels or light pollution in the surroundings. It is an essential tool to ensure that the right ambient light is present in workplaces, schools, or even at home, and is often used by photographers in studios and natural settings to calibrate film camera equipment. They most commonly measure light sources such as white LED lights, fluorescent lamps, metal halide, high-pressure sodium, and incandescent bulbs. Measurement range: 200, 2000, 20,000, 200,000 lux; 20, 200, 2000, 20,000 candelas per foot.